1601504307664 has 40 divisors (see below), whose sum is σ = 3109916452608. Its totient is φ = 798945897600.

The previous prime is 1601504307569. The next prime is 1601504307671. The reversal of 1601504307664 is 4667034051061.

It is a self number, because there is not a number n which added to its sum of digits gives 1601504307664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44528889 + ... + 44564839.

Almost surely, 2^{1601504307664} is an apocalyptic number.

It is an amenable number.

1601504307664 is a deficient number, since it is larger than the sum of its proper divisors (1508412144944).

1601504307664 is a wasteful number, since it uses less digits than its factorization.

1601504307664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42163 (or 42157 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 1601504307664 in words is "one trillion, six hundred one billion, five hundred four million, three hundred seven thousand, six hundred sixty-four".